I'm having a query on call blocking feature. I did the test of this feature in the simulator (GNS3) of C3725 which do not have physically PSTN connection. So I put add the blcok pattern as one of a dn number, for example 6001. But after setup the after-hours, a extension, for example 3001, could still reach 6001. So I'm not sure if call blocking feature only could apply to off-net calls. Enclosed is the config in C3725.

My question is did you set this service for after hours only. Or its not working during after hours. If its the second case then there are many thing which are overridden by after hours. So you will need to aply it for after hours also . Please check. And correct me if I am wrong.

I think I know where the problem is. In simulator's environment router's data/time is always not the real date/time. I manually use clock setcommand to update the date/time, then the call block feature works as expect.